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AMS4040A

Micropower shunt voltage reference

Advanced Monolithic Systems Inc 

AMS4040

ABSOLUTE MAXIMUM RATINGS (Note 1)

Reverse Current

Forward Current

100mA

10mA

Internal Power Dissipation (PD)

TO-92 Package

0.78W

Storage temperature

-65°C to +150°C

SO-8 Package

0.71W

Lead Temperature

SOT-89 Package

0.91W

TO-92 package (Soldering 10 sec.)

265°C

SOT-23 Package

0.28W

SO-8 and SOT-23 packages:

Vapor phase (60 sec)

215°C

Thermal Resistance (θJA)

TO-92 Package

160°C/W

Infrared (15 sec.)

220°C

SO-8 Package

175°C/W

SOT-89 package (Soldering 10 sec.)

265°C

SOT-89 Package

110°C/W

SOT-23 Package

410°C/W

Note1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and test conditions, see the

Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed.

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at IR =100 µA and TA = +25°C unless otherwise specified.

Parameter

Conditions

AMS4040A

AMS4040B

Min Typ Max Min Typ Max

AMS4040C

Min Typ Max

Units

Reverse Breakdown

Voltage

2.494

2.500

2.506

2.488

2.500

2.512

2.475 2.500 2.525

V

Deviation of Reverse

Breakdown Voltage over

Temperature

TA = Full Range

8.0

17

8.0

17

8.0

25

mV

Reverse Breakdown

Voltage Change with

Operating Current

Change

IRMIN ≤ IR ≤ 1mA

1mA ≤ IR ≤ 15mA

0.3

0.8

1.0

2.5

6.0

8.0

0.3

0.8

1.0

2.5

6.0

8.0

0.3

0.8

mV

1.0

2.5

6.0

mV

8.0

Reverse Breakdown

Voltage Long Term

TA=25°C±.1°C

T = 1000 Hr

120

120

120

ppm

Stability

Wide Band Noise

10HZ ≤ f ≤ 10kHz

35

35

Reverse Dynamic

Impedance

IR = 1mA, f = 120Hz,

IAC = 0.1IR

0.25

0.5

0.25

0.5

Minimum Operating

Current

80

2500

80

250

Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C.

35

µVrms

0.25

0.5

Ω

80

250

µA

TYPICAL APPLICATIONS

Shunt Regulator

VS

RS

VR

AMS4040-2.5

IQ + IL

IL

IQ

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

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